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  2. Night-vision device - Wikipedia

    en.wikipedia.org/wiki/Night-vision_device

    The device enhances ambient visible light and converts near-infrared light into visible light which can then be seen by humans; this is known as I 2 (image intensification). By comparison, viewing of infrared thermal radiation is referred to as thermal imaging and operates in a different section of the infrared spectrum.

  3. Looking to buy solar eclipse glasses last-minute? Here are 4 ...

    www.aol.com/looking-buy-solar-eclipse-glasses...

    Ahead of Monday's solar eclipse, large retailers are selling eye protection. Walmart, Staples, Home Depot and Lowes offer various eclipse products.

  4. Zenni Optical - Wikipedia

    en.wikipedia.org/wiki/Zenni_Optical

    Zenni Optical mail order. Zenni Optical was founded in 2003 by Tibor Laczay and Julia Zhen. [1] [2] Before being renamed to Zenni Optical when it began offering $7 and $8 glasses, the company was named 19dollareyeglasses.com. [3] [4] [5] Around 2014, co-founder Zhen acquired the building occupied by the Marin Independent Journal to house Zenni. [6]

  5. Infrared - Wikipedia

    en.wikipedia.org/wiki/Infrared

    Nearly all the infrared radiation in sunlight is near infrared, shorter than 4 μm. On the surface of Earth, at far lower temperatures than the surface of the Sun, some thermal radiation consists of infrared in the mid-infrared region, much longer than in sunlight. Black-body, or thermal, radiation is continuous: it radiates at all wavelengths.

  6. Warby Parker - Wikipedia

    en.wikipedia.org/wiki/Warby_Parker

    Warby Parker Inc. is an American manufacturer and retailer of prescription glasses, contact lenses, and sunglasses, based in New York City. Founded in 2010, it was initially an online-only retailer. It now receives about 90% of its revenue from its 237 physical retail stores, 232 of which are in the U.S. and 5 of which are in Canada. [1]

  7. Night vision - Wikipedia

    en.wikipedia.org/wiki/Night_vision

    Active infrared night-vision combines infrared illumination of spectral range 700–1,000 nm (just over the visible spectrum of the human eye) with CCD cameras sensitive to this light. The resulting scene, which is apparently dark to a human observer, appears as a monochrome image on a normal display device. [ 15 ]

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